Key Items are kept in the Key Items inventory, separate from the other items. You could see these items as event items, as you can only obtain them once and only by
when finding them or when they are given to you. Most of these items are part of a side-quest.

Item Name

Description

Withered Bouquet

Someone put heart and soul into making this. Tidus needs to find it it to light a fire.

Flint

Used to start fires. Tidus needs to find it it to light a fire.

Rusty Sword

An old, rusty sword.

Mark of Conquest

Given to those who have surpassed mortal bounds. Given to you when you've captured, created and fought all enemies in the Monster Arena.